Knowledge base for software setup, errors, and daily tool work.

Windows Defender Service Not Starting: Fixes and Checks

When Windows Defender won't start, you might see an error like "Windows Defender service can't be...

WireGuard Handshake Not Completing: Practical Checklist

If your WireGuard tunnel is up but the handshake never completes, you'll see no data transfer and...

Fix Windows Update 502 Bad Gateway Due to DNS Configuration

If you see a '502 Bad Gateway' error when running Windows Update, the problem is often on the net...

Fix Windows Terminal Connection Refused When WSL Not Working

When you open Windows Terminal and see "connection refused" for a WSL profile, it usually means t...

Fix VSCode Extension Host Terminated Error Code 0

What does this error mean?

When you see 'Extension host terminated unexpectedly with erro...

Fix Cloudflare DNS Permission Denied Error

When managing DNS records via the Cloudflare API or CLI tools, you may encounter a permissi...